We Use Cookies

We use cookies to enhance the security, performance, functionality and for analytical and promotional activities. We use cookies to personalize ads for you. By continuing to browse this site you're agreeing to our Privacy Policy

Filter by

Pricing range

£7

£849

Pricing

Store

Condition

Filter by brand

Other

3 tb external hard drives Deals in the UK

Today's best

deals, discounts, and offers

20 deals found

Sort by:

Deals are available from 3 stores and 2 brands. An additional discount is available for 14 items. Last updated on 23 September 2025.
LaCie Rugged Mini 4TB USB3
LaCie Rugged Mini 4TB USB3
LaCie Rugged Mini 4TB USB3
New
Free Shipping
View Deal
Yottamaster 5 Bay External Hard Drive Enclosure USB3.0 HDD BOX for 3.5/2.5 Inch SATA HDD Support 5 x 16TB Storage RAID Case(DAS)
35% Off
Yottamaster 5 Bay External Hard Drive Enclosure USB3.0 HDD BOX for 3.5/2.5 Inch SATA HDD Support 5 x 16TB Storage RAID Case(DAS)
Yottamaster 5 Bay External Hard Drive Enclosure USB3.0 HDD BOX for 3.5/2.5 Inch SATA HDD Support 5 x 16TB Storage RAID Case(DAS)
New
£178.75
Free Shipping
View Deal
eufyCam S3 Pro 2-Cam Kit + 1 TB Hard Drive
eufyCam S3 Pro 2-Cam Kit + 1 TB Hard Drive
eufyCam S3 Pro 2-Cam Kit + 1 TB Hard Drive
New
Free Shipping
View Deal
WD Western Digital Mobile Hard Disk 6TB 5TB 4TB 2TB 1TB External hdd 2.5" hard drive Large-capacity Mechanical USB3.0 Hard Drive
50% Off
WD Western Digital Mobile Hard Disk 6TB 5TB 4TB 2TB 1TB External hdd 2.5" hard drive Large-capacity Mechanical USB3.0 Hard Drive
WD Western Digital Mobile Hard Disk 6TB 5TB 4TB 2TB 1TB External hdd 2.5" hard drive Large-capacity Mechanical USB3.0 Hard Drive
New
£136.78
Free Shipping
View Deal
eufyCam S330 (eufyCam 3) + 1 TB Hard Drive
eufyCam S330 (eufyCam 3) + 1 TB Hard Drive
eufyCam S330 (eufyCam 3) + 1 TB Hard Drive
New
Free Shipping
View Deal
eufyCam S330 (eufyCam 3) + SoloCam S340 (2-Pack) + 1 TB Hard Drive
eufyCam S330 (eufyCam 3) + SoloCam S340 (2-Pack) + 1 TB Hard Drive
eufyCam S330 (eufyCam 3) + SoloCam S340 (2-Pack) + 1 TB Hard Drive
New
Free Shipping
View Deal
EAGET G20 Portable HDD 5400 RPM USB 3.0 Hard Disk Drive 250gb 500gb 1T 2T External Mechanical Hard Drive for Laptop Desktop
50% Off
EAGET G20 Portable HDD 5400 RPM USB 3.0 Hard Disk Drive 250gb 500gb 1T 2T External Mechanical Hard Drive for Laptop Desktop
EAGET G20 Portable HDD 5400 RPM USB 3.0 Hard Disk Drive 250gb 500gb 1T 2T External Mechanical Hard Drive for Laptop Desktop
New
£28.57
Free Shipping
View Deal
eufyCam S3 Pro 3-Cam Kit + 1 TB Hard Drive
eufyCam S3 Pro 3-Cam Kit + 1 TB Hard Drive
eufyCam S3 Pro 3-Cam Kit + 1 TB Hard Drive
New
Free Shipping
View Deal
ORICO HDD Case 3.5" Hard Drive Enclosure Aluminum USB3.1 Type-C Heat Dissipation External HDD Docking Station for 2.5" 3.5" HDD
50% Off
ORICO HDD Case 3.5" Hard Drive Enclosure Aluminum USB3.1 Type-C Heat Dissipation External HDD Docking Station for 2.5" 3.5" HDD
ORICO HDD Case 3.5" Hard Drive Enclosure Aluminum USB3.1 Type-C Heat Dissipation External HDD Docking Station for 2.5" 3.5" HDD
New
£58.58
Free Shipping
View Deal
UnionSine HDD 2.5" Portable External Hard Drive 2tb/1tb/500gb/750gb Disk Memory USB 3.0 Storage for PC/Mac/Desktop/MacBook/TV
50% Off
UnionSine HDD 2.5" Portable External Hard Drive 2tb/1tb/500gb/750gb Disk Memory USB 3.0 Storage for PC/Mac/Desktop/MacBook/TV
UnionSine HDD 2.5" Portable External Hard Drive 2tb/1tb/500gb/750gb Disk Memory USB 3.0 Storage for PC/Mac/Desktop/MacBook/TV
New
£13.98
Free Shipping
View Deal
HD External Hard Drive 2.5" Portable Hard Drive 500GB 1TB USB 3.0 External HDD for PC MacBook PS4 PS5
51% Off
HD External Hard Drive 2.5" Portable Hard Drive 500GB 1TB USB 3.0 External HDD for PC MacBook PS4 PS5
HD External Hard Drive 2.5" Portable Hard Drive 500GB 1TB USB 3.0 External HDD for PC MacBook PS4 PS5
New
£32.38
Free Shipping
View Deal
KingSpec External SSD hard drive 120GB SSD 240GB 480GB Portable SSD External hard drive 1TB hdd for laptop with Type C USB 3.1
46% Off
KingSpec External SSD hard drive 120GB SSD 240GB 480GB Portable SSD External hard drive 1TB hdd for laptop with Type C USB 3.1
KingSpec External SSD hard drive 120GB SSD 240GB 480GB Portable SSD External hard drive 1TB hdd for laptop with Type C USB 3.1
New
£35.72
Free Shipping
View Deal
CoolFish HDD 3.5'' External Hard Disk 3TB/4TB/6TB/8TB/10TB/12TB TypeC Hard Drive External Storage Decives Hard Disks for PC/ Mac
8% Off
CoolFish HDD 3.5'' External Hard Disk 3TB/4TB/6TB/8TB/10TB/12TB TypeC Hard Drive External Storage Decives Hard Disks for PC/ Mac
CoolFish HDD 3.5'' External Hard Disk 3TB/4TB/6TB/8TB/10TB/12TB TypeC Hard Drive External Storage Decives Hard Disks for PC/ Mac
New
£106.92
Free Shipping
View Deal
HDD External Hard Drive 2.5 Portable Hard Drive HDD External 320GB 500GB 1TB 2TB USB3.0 250GB
56% Off
HDD External Hard Drive 2.5 Portable Hard Drive HDD External 320GB 500GB 1TB 2TB USB3.0 250GB
HDD External Hard Drive 2.5 Portable Hard Drive HDD External 320GB 500GB 1TB 2TB USB3.0 250GB
New
£23.16
Free Shipping
View Deal
Yottamaster 5 Bay Hard Drive Enclosure USB3.1 (GEN2) Type-C External HDD Enclosure Support 2.5"/3.5" SATA SSD 80TB Data Storage
62% Off
Yottamaster 5 Bay Hard Drive Enclosure USB3.1 (GEN2) Type-C External HDD Enclosure Support 2.5"/3.5" SATA SSD 80TB Data Storage
Yottamaster 5 Bay Hard Drive Enclosure USB3.1 (GEN2) Type-C External HDD Enclosure Support 2.5"/3.5" SATA SSD 80TB Data Storage
New
£414.18
Free Shipping
View Deal
BestDeals.today is customer-supported. When you buy products through our site, we may earn an affiliate commission on featured products.